[The effect of bonded and nonbonded posts on the fracture resistance of dentin].
This in vitro study determined the effect of bonded and non-bonded cast, serrated, tin plated, parallel gold posts on the fracture resistance of surrounding dentine walls. Specimens were divided into two groups. One group's posts were luted with zinc phosphate cement and the other group's posts were tin-plated and adhesively bonded with an adhesive resin cement. Three different dentine wall thicknesses, namely 0.5 mm, 0.75 mm and 1.0 mm were prepared, subdividing the specimens of each main group into three subgroups. Specimens were subjected to a 50 degrees oblique force. The force required to fracture the dentinal walls was registered. There was no statistically significant differences in the fracture resistance of dentine with the two different cements or of the different dentine wall thicknesses.
Driessen
C H
CH
Department Herstellende Tandheelkunde, Fakulteit Tandheelkunde, Universiteit van Pretoria.
Marais
J T
JT
de Villiers
D P
DP
Nel
J C
JC
D001840:Dental Bonding / Q000295:instrumentation / Q000379:methods; D003804:Dentin / Q000187:drug effects*; D006047:Gold Alloys; D006801:Humans; D066298:In Vitro Techniques; D011176:Post and Core Technique / Q000295:instrumentation; D019279:Resin Cements / Q000494:pharmacology; D015036:Zinc Phosphate Cement / Q000494:pharmacology
D006047:Gold Alloys; D019279:Resin Cements; D015036:Zinc Phosphate Cement
Die effek van gebonde en ongebonde stiwwe op die fraktuurweerstand van dentien.